题目：去除数组中3个及以上相邻的0 

javascript">const data = [1, 2, 3, 0, 0, 0, 5, 2, 0, 1, 0, 0, 2];
//去除三个及以上相邻的0
//返回结果：[1,2,3,5,2,0,1,0,0,2]

 

javascript">//去除三个及以上相邻的0

const data = [1, 2,0,0, 3, 0, 0, 0,0, 5, 2, 0, 1, 0, 0, 0];
//  [1, 2, 0, 0, 3, 5, 2, 0, 1]

//const data = [1, 2, 3, 0, 0, 0, 5, 2, 0, 1, 0, 0, 2];
//返回结果：[1,2,3,5,2,0,1,0,0,2]

let start=0,count=0; // start记录0开始的位置
let res = [];
for(let i=0;i<data.length;i++){
    if(data[i]==0){//1.遇到0
        count++;
    }else{ //2. 遇到非0，退出本次循环
        start = i+1;
        count = 0;
        continue;
    }
    if(count<3){ //3.遇到0的个数小于3，退出本次循环
        continue;
    }
    //4. 0的个数>=3, 继续查找后面是否有0
    while(i+1<data.length && data[i+1]==0){
        i++;
        count++;
    }
    //5. 删除0
    data.splice(start,count);
    //6. 数组长度变化，将i回退。
    i = i-count+1;
    //7. 重置start和count
    start = i;
    count = 0;
}
console.log(data)